Ballpoint pen



FIG. 1 is a perspective view of a ballpoint pen;

FIG. 2 is a perspective view of the pen thereof in open position;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side view thereof, a right side view being a mirror image of the left side view;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front elevational view of a body of the ballpoint pen, a rear elevational view being a mirror image of the front elevational view;

FIG. 9 is a left side view of the body of the ballpoint pen, a right side view of the body of the pen being a mirror image of the left side view;

FIG. 10 is a top plan view of the body of the ballpoint pen;

FIG. 11 is a bottom plan view of the body of the ballpoint pen; and,

FIG. 12 is a sectional view thereof, taken along line 12—12 of FIG. 4. 

The ornamental design for a ballpoint pen, as shown and described. 